GB1044983A - Improvements in and relating to zeolites - Google Patents
Improvements in and relating to zeolitesInfo
- Publication number
- GB1044983A GB1044983A GB694764A GB694764A GB1044983A GB 1044983 A GB1044983 A GB 1044983A GB 694764 A GB694764 A GB 694764A GB 694764 A GB694764 A GB 694764A GB 1044983 A GB1044983 A GB 1044983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zeolite
- na2o
- reaction mixture
- metal
- al2o3
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2838—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively)
- C01B33/2853—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively) of type Y
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
A process for the preparation of crystalline Type Y zeolite having the following molar ratio of constituents in its dehydrated form 0.9\sB0.2 Na2O: Al2O3: XSiO2 where X has a value from 3 to 7, comprises preparing an aqueous reaction mixture containing Na2O, SiO2 and Al2O3, the molar ratios of the constituents being within the following ranges. <TABS:1044983/C1/1> and heating the reaction mixture to a crystallization temperature of 180 DEG to 250 DEG F. for at least 24 hours and recovering the crystallized Type Y zeolite product. The reactants may be mixed at ambient temperature and then the reaction mixture may be maintained at 50-140 DEG F. for 1-15 hours prior to heating to the crystallization temperature. The product crystals, after separation from the mother liquor and thorough washing, may be activated by heating to 300-450 DEG C. to remove water of hydration to give an anhydrous product suitable for use as an adsorbent. The zeolites may be subjected to ion-exchange with metal cations of Groups I to VIII and the rare earth metals to give products suitable for use as catalysts. The ion-exchanged zeolites may be further modified by impregnation with noble metals, e.g. Pd, Pt, Rh, Mo, Cr, V, Co, Ni, Cu, Ag or Mn.ALSO:Crystalline Type Y zeolite having the following molar ratio of constituents in its dehydrated form 0.9 \sB 0.2 Na2O : Al2O3 : XSiO2 where X has a value from 3 to 7 is prepared by preparing an aqueous reaction mixture containing Na2O1 SiO2 and Al2O3, the molar ratio of constituents being within the following range: .SiO2/Al2O3.3.0 - 9.5 .Na2O/SiO2.0.20 - 0.27 .H2O/SiO2.3 - 10 and heating the reaction mixture to a crystallization temperature of 180 DEG -250 DEG F. for at least 24 hours and recovering the crystallized Type Y zeolite product. The zeolite may be subjected to ion exchange with a metal cation e.g. of Group I to VIII and the rare earth metals or a hydrogen containing cation e.g. ammonium to reduce the Na content (Na2O) to less than 10% by wt. based on the weight of zeolite crystals to give products useful as catalysts for hydrocarbon conversion processes. The ion-exchanged zeolites can be further modified for certain applications e.g. hydrocracking by impregnation with a suitable metal e.g. Pd, Pt, Rh, Mo, Cr, V, Co, Ni, Cu, Ag or Mn. Preferably the zeolite are first decationized by base exchange with NH14 or H ions and then heated with the appropriate metal salt or ammonium complex of the metal e.g. ammonium chloroplatinate and palladium chloride and the catalyst will generally contain 0.01 to 5.0 wt per cent of the metal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27704263A | 1963-04-30 | 1963-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1044983A true GB1044983A (en) | 1966-10-05 |
Family
ID=23059173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB694764A Expired GB1044983A (en) | 1963-04-30 | 1964-02-19 | Improvements in and relating to zeolites |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA922487A (en) |
CH (1) | CH483995A (en) |
DE (1) | DE1295533B (en) |
GB (1) | GB1044983A (en) |
NL (1) | NL6402217A (en) |
SE (1) | SE301139B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH282H (en) | 1982-12-27 | 1987-06-02 | W. R. Grace & Co. | High silica/alumina ratio faujasite type NaY |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5785944A (en) * | 1996-07-31 | 1998-07-28 | Chevron U.S.A. Inc. | Preparation of Y zeolite |
US6756029B2 (en) | 1999-08-11 | 2004-06-29 | Petroleo Brasileiro S.A.-Petrobras | Molecular sieves of faujasite structure |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1098927B (en) * | 1957-08-26 | 1961-02-09 | Union Carbide Corp | Process for making crystalline zeolitic molecular sieves |
DE1098929B (en) * | 1958-04-14 | 1961-02-09 | Union Carbide Corp | Process for making crystalline zeolitic molecular sieves |
-
1964
- 1964-02-19 GB GB694764A patent/GB1044983A/en not_active Expired
- 1964-02-20 CA CA896149A patent/CA922487A/en not_active Expired
- 1964-02-24 SE SE223664A patent/SE301139B/xx unknown
- 1964-02-26 CH CH235364A patent/CH483995A/en not_active IP Right Cessation
- 1964-02-26 DE DE1964E0026494 patent/DE1295533B/en active Pending
- 1964-03-05 NL NL6402217A patent/NL6402217A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH282H (en) | 1982-12-27 | 1987-06-02 | W. R. Grace & Co. | High silica/alumina ratio faujasite type NaY |
Also Published As
Publication number | Publication date |
---|---|
CA922487A (en) | 1973-03-13 |
SE301139B (en) | 1968-05-27 |
DE1295533B (en) | 1969-05-22 |
NL6402217A (en) | 1964-11-02 |
CH483995A (en) | 1970-01-15 |
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